Improvement in sole-burnishing machines



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lmprovemen't in Sole-Burnishing Machines.

Patented. Aug. 20, 1872.

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impro-vement in Sale-Burnishng Machines No. 130,567, Patented Aug. 20,i872.

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N OL 30,567. Patented Aug.20,18'72.

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Improvement in Sole-Burnishing Machines.r

No. 130,567. Pamnted'Aug-2o-1s72.

UNITED lSTATES PATENT OFFICE.

AUGUSTUS C. CAREY, OF MALDEN, ASSIGNOR TO HIMSELF AND DEAN PEABODY, onLYNN, MASsAc'EUsEtrrs.`

IMPROVEMENT IN SOLE-'BURNISHING MACHINES.

Specification forming part of Letters Patent No. 130,567, dated August-2O, 1872.

`Specification describing certain Improvef ments in Machinery forBurnishing the Bottoms'of Boot and Shoe Soles, invented by AUGUSTUS C.CAREY, of Malden, in the county of Middlesex and Commonwealth ofMassachusetts. y

My present improvements relate more or less intimately to the principleof a machine for burnishing sole-Shanks shown and described in LettersPatent of the United States numbered 124,479, and issued on the 12th dayof March, 1872, to James K. Blanchard, Frederick S. Hunt, and myself butwhile this machine wa-s intended solely for burnishin g the shanks ofsoles my present machine, in addition to comprising certain improvementsin such patented mechanism, is designedto effect the fore-partburnishing, so called, of the sole-that is to say, to polish the narrowblack or red band about the edge of the solebottom now common to certainclasses of work; and this invention'may be said to consist primarily inthe combination, with a machine for burnishing Sole-Shanks, of asuitable mechanism for effecting the said fore-part burnishmg.

I have, in carrying out my present purpose, reorganized the generalconstruction of the patented machine above named by, first, re movingfrom the top of the operative table of the same the shaft and crankwhich drives the burnishing-tool, and employing in lieu thereof anupright vibratory or oscillating lever, .pivoted with the hollow columnof the machine, and driven by a suitable crank mo tion, theburnishingtool being driven directly by the upper extremity of saidlever; and, secondly, my improvements in said patented machine consistin the employment of a many- Sided burnishing-tool or stock, whereby Iam enabled to bring into action instantly any desired form of tool, andeconomize the time which might otherwise be consumed in removing orapplying tools of various forms; and, thirdly, I have embodied herein acertain construction of jack, which relates not only to the patentedmachine before referred to, but

to the additional feature of fore-part77 work combined therewith, sincethe jack is designed to operate with either alone or with both, as thecase may be 5 Said improved jack consisting of aplate sliding to and froof the operating-table, and bearing upon its top a head stock orstandard pivoted to it in Such "a manner as to revolve freely upon thepivot in a horizontal plane, in order to presentthe boot carried by itto the action of either the shank or fore-part burnishing-tool, whilewithin said head-stock is suspended a swin ging frame or yokeSusceptible of swaying laterally upon its points of suspension, in orderto accommodate the transverse crowning-surface of the shank to theshank-burnishing tool when the latter itself does not rock, and toenable the fore-part7 burnisher to ,conform to the irregular outline 'ofthe sole as it travels about the latter, the

heel-support of the jack being pivoted within the rocking `frame, andprovided with a suitable spring to impel it toward the toe-support,while the toe-sufpport in turnis adjustable within the Said frame inorder to adapt the jack to the carrying of a boot which does or does notcontain a last.

I have shown, in the drawing which accompanies this specification, inFigure l a side elevation, in Fig. 2 a front-end view, in Fig. 3 a plan,and in Fig. 4 a vertical, central, and

longitudinal section of a machine embodying my improvements.

The drawing accompanying this specification represents at A an uprighthollow column or pedestal, provided with a suitable base, andterminating at the top in a horizontal iiat tablet or platform, B.Within the column Ais disposed an upright beam or lever, C, oscillatingupon a horizontal pivot, D, which supports it within such a column, thelower end of said beam C being connected to one extremity of aconnecting-rod, E, whose opposite termination embraces the wrist-pin ofa crank-wheel, F, affixed to and revolved by a horizontal driving-shaft,G, which is mounted in a suitable bracket, H, projecting rearward fromthe column A. The beam C rises through and to some distance abovethe topof the tablet, and is pivoted at its upper end to the rear eXtremity ofa horizontal bar or rod, l, which extends over the tablet B, andlongitudinally and centrally thereof, the forward end of such barcarrying the shank-burnishing tool J. This tool, as shown in thedrawing, is a block of steel, formed with several working-faces ofVvarious forms in order to obtain a wide range of application in oneinstrument without loss of time, the said block being applied to the barby a set-screw or otherwise, and being heated by a gas-jet or in anysuitable manner. Upon the bar I, I affix a cross-head, K, and over thiscross-head and securely attached to it I dispose a plate-spring, L, ofequal length. M M represent two upright rods, disposed one upon eachside of the bar I, and extending loosely through the ends of thecross-head K and spring L, a setscrew, O, being screwed upon each rodbelow and abutting against the cross head and a nut, P, upon the top ofeach rod, a spring, Q, being situated between the said spring and bar,and about each rod, and serving, by expansion, to obtain, in conjunctionwith the spring L, an elastic medium between the burnishing-tool J andthe pedal R, to which the said rods are attached, such pedal beingdisposed at the bottom of the column A, and pivoted to its rear part, asshown, and extending forward into a position to be readily accessible tothe foot of the operator. The purposes of the springs L and M M are tocreate an elastic or yielding union between the burnishing-tool andpedal to enable the said tool to traverse the sole with the desiredeffect, and adapt itself with good effect to the curvatures of thelatter, which a rigid connection would not permit of. The" oscillationsof the beam C carry the burnishing-tool through the necessaryreciprocations to impart a polish to the sole-shank, against which itimpinges, and the par I serves to uphold the burnishing-tool during suchreciprocal traverses, the set-screws O O enabling the height of the toolto be varied with respect to the pedal, as desired, while the nuts I Pregulate the degree of elasticity between the burnishing-tool and pedal.

The jack for supporting the boot or shoe and presenting it to the actionofthe burnishing-tool is shown at S in the accompanying drawing ascomposed, first, of a flat carriage or plate, a, which rests upon thetable B, and slides longitudinally to and fro of the front part thereof,and is guided by a slot, b, created therein, a stop-pin or gage, c,being applied to the front part of said plate or carriage, which pin,abutting against the table, serves to estop the advance of the jack atthe desired point with respect to the burnishing-tool, the plate beingconnected with the pedal R by a coiled spring, d, in order to retain itin place upon the table. Upon the plate or carriage a I pivot ahead-stock, e, in such manner that the latter may rotate freely upon theformer, and within the head-stock or between its end standards f f, Isuspend, by suitable pivots g g, in such manner that it mayroclrthereupon, an upright frame or curved bar or carrier, h, within thefront part of which frame I pivot a bent lever, 7', the upper andupright part or post 7c of which constitutes the heelsupport of the lastl, while between the lower and horizontal arm m of such lever and theframe or carrier h I dispose a spring, 11whose expansion serves to impelthe heel-post k toward the toe-rest o and clamp the last rmly thereto.The toe-rest last named is an upright post applied in an adjustablem'anner to the carrier h, in order that its position, with respect tothe heel-post, may be varied, and increase or diminish the distanceintervening between them in order that, when a boot in which the last isleft remaining is applied to the machine, the toe-rest may be removedfurther from the heel-post and bear upon the outside of the upper of theboot, while if a stationary last, or one making part, for the timebeing, of the jack, is employed, the toerest must be placed nearer theheel-post in order that the last may bear directly upon it and permitthe shoe to be applied, which could not be drawn over the last were thetoerest in an advanced position.

The longitudinal to-and-fro sliding of the jack is to enable it to beretracted to receive a boot, and to be advanced to present the boot tothe action of the burnishing-tool and hold it rmlyin place under theaction of the latter, while the lateral rocking or swinging motion ofthe last is to present the entire convex surface of the sole-shank tothe action of the tool. This rocking motion, however, may be wholly orpartially applied to thc burnishingtool, or such tool or the jack, orboth, may receive a compound or twisting motion, which is bothreciprocating and rocking, should this be found desirable. This,however, is of little consequence, and would be a mere mechanicalvariation of the principle of the patented machine hereinbefore referredto as issued to myself and others. The horizontal swiveling motion ofthe head-stock h upon the sliding plate or carrier c is for the purposeof enablingl the boot to be more readily jacked or removed, and also toprovide a ready means of presenting the boot to the action oftheforepart77 burnishing-tcol, hereinbefore alluded to as constituting animportant element in my present machine.

In carrying this portion of my invention in one practical manner, inwhich, among others, it may be effected, I erect upon one front cornerof the table B, and overhanging the same, a bracket, p, terminating inan upright post, q, within the upper part of which post I swivel ahorizontal head, r, in such manner that it may rotate freely in suchpost, while within or upon such head I mount a horizontal bar or slider,s, which is susceptible of sliding back and forth in its bearings insaid head, a suitable spring being interposed between the two to preventtoo free movement of the bar. Within one extremity of the bar s I swivelan upright rod or tool-carrier, t, in order that it may revolve thereinat the pleasure of the operator, the lower end of such tool carrying ashort horizontal shaft, fu, which revolves within it, a pulley, w, beingaffixed to one end of such shaft to which power is applied from a secondpulley, m, mounted upon an arm orv `edge of the latter.

rier, and to allow the burnishing-tool to rise or fall to conform to theform of the sole.

The universal joint last above described permits a freedom of motion ofthe fore-part tool in any direction, and allows it, while revolving, tobe carried about the boundary of the sole-bottom and burnish .theextreme The character of this application of the fore-part. tool,however, is in no wise arbitrary or restricted, as a universal joint forthe purpose may be obtained in a variety of ways without affecting theportion of my invention which comprehends the combination of the twoelements-the shank and fore-part burnishing process. So, also, withregard to the character of the fore-part tool. Although herein shown asa rotary disk, it may be a tool vibrating or oscillating upon a pivot,ormoving in reciprocal traverses in a given plane, or otherwisetraveling to effect the desired result-as I do not consider this portionof my invention to be limited to a given mode. of construction or methodof operating the fore-part tool.

The operation of the above-described machine is brieiiy as follows: 'Ihejack is advanced to its extreme position away from the shank-burnishingtool, a boot applied to it and returned, the said tool being in motion.The operator now depresses the pedal and lowers the burnishing-tool incontact with the shank, the reciprocations of such tool effecting thedesired polish, the boot being rocked laterally (should the tool notrock or move laterally) as the polishing, progresses, until the entiresurface of the blacked portion of the shank has been gone over. Theshank having been thus burnished, the jack and boot is again retracted,and the jack turned upon its pivot ninety degrees of a circle orthereabout, or at about right angles to the path of movement of theburnishing-tool, this adjustment of the jack,`however, being dependentupon the position of the fore-part tool. The boot being turned into theposition last stated, is

in a proper position to receive the action of the fore-part tool a. Theoperator now seizes the handle b in his right hand and grasps the jackor some part of the boot with his left, places the revolving tool a incontact with the edge of the sole-bottom, and so guides the movements ofthe said boot or its jack and the saidfore-part tool as to compel thelatter to travel entirely about the contour of the sole, with'theexception of the shank portion thereof, which had previously beenburnished, as stated. The boot is now removed, and an unnished oneapplied to the jack.

Claims.

1. An organized mechanism for burnishing the bottoms of boot and shoesoles, comprising a shank-burnisher, a fore-part burnisher,

and a jack, arranged to present the work to each of said burnishers insuccession, substantially as shown and set forth.

2. A jack, composed of the head-stocke, swinging frame h, lever j, andadjustable toesupport o, together with means for pressing or holding theupper part or heel-post of the 1ever toward said toe-support,substantially as and for the purposes set forth.

3. The combination of the head-stock e and plate a, the said-head-stockbeing pivoted to the plate so as to turn on a vertical axis, and theplate being arranged to slide toward and away from the shank-burnishingtool, substantially as set forth.

4. In machinery for burnishing the shanks of boots and shoes, aburnishing-tool or stock, formed with faces of different shapes, asrequired, for the different stages of the burnishing process,'or for thevarious shapes of soles to be burnished, and combined with its support,in the manner described, so that it may be adjusted to bring intoposition for work any one of its faces, as required.

5. In a machine for burnishing the fore part of aboot or shoe sole, afore-partbur nishing-tool having universal freedom of motion,substantially as herein shown and described, and for the purposesstated.

6. The means herein described of connecting the pedal with the supportof the shankburnishing tool, consisting of the cross-head K, spring L,rods M, and nuts and springs O P Q, substantially as herein shown andset forth.

AUGUSTUS C. CAREY. Witnesses:

DEAN PEABODY, WM. SrURc-Is.

